iNode Serial Transceiver UART

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iNode Serial Transceiver UART is a Bluetooth Low Energy transceiver  with 2x4 pin 2.54 mm connector with low voltage RS232 input and output. You can easy use it in your own controller or other device, to communicate in a simple way with the BLE type devices eg. iNode. To control BLE devices it uses a basic set of HCI commands HEX-encoded transmitted character strings. To turn the scan on is enough to send to the 010C20020100 string. The same way of communication is used in the iNode LAN over TCP/IP or WebSocket or iNode Serial Transceiver USB.

Technical info:

Bluetooth Low Energy:

  • configurable from your PC:
    • the power with which the device operates:
      • BT 5.1: +2.5 dBm maximum
      • BT 4.0: +8 dBm maximum
    • the name of the device;
    • the password of the user;
    • the password to access the device; independent of the user's password, the password for the authorization application on the smartphone or PC (protects against its copying and use by another client);

Power supply:

  • 3.3V DC;
  • average current (@3.3V):
    • BT 5.1:
      • ~2.5mA in standby / advertising in BLE;
      • ~2.6 mA connected  (Tx power +2.5 dBm);
      • up to 3.3 mA during BLE scanning;
    • BT 4.0:
      • ~55µA in standby / advertising in BLE;
      • ~3 mA connected  (Tx power -2dBm);
      • up to 25 mA during BLE scanning;


  • dimensions:
    • BT 5.1:  51.5 mm x 18 mm x 8.5 mm;
    • BT 4.0:  55 mm x 20 mm x 15 mm;


  • ratio scan window/scan interval = 100% -> receiving from BLE all the time;
  • signaling by LED:
    • broadcast mode
    • connection
  • remote firmware update;
    • counterfactual firmware (BT 4.0): iNode Control Point UART;
  • 2x4 pin 2.54 mm connector (BT 4.0);
  • operating temperature: from -20 to 45 °C;
  • humidity: 20-80 % RHG.
  • weight: 15 g;


  • Windows XP/Vista/7.0/8.0/8.1/10.0;
  • Linux;



PDF DocumentInstruction manual for the iNode Serial Transceiver UART BT 5.1.

PDF DocumentInstruction manual for the iNode Serial Transceiver UART BT 4.0.


Apps for ANDROID and WINDOWS. Application iNodeSetup.exe works on Windows with Bluetooth adapter based on chipset CSR8510 or the iNode Serial Transceiver USB, iNode LAN. On Linux the iNode Serial Transceiver USB and/or iNode LAN is needed and e.g. Ubuntu with Wine installed (described in FAQ section).

Current firmware for iNode products is available at our technical support service:
user: inode
without a password


  • PLC
  • Home Automation controllers
  • Automatic gate systems
  • Data acquisition


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Copyright © 2015-2022 ELSAT

ELSAT s.c. ul. Warszawska 32E/1 05-500 Piaseczno POLAND tel. +48 22 7164306 e-mail:


Trademarks or registered trademarks:
Bluetooth Low Energy ®, Bluetooth 4.0 ®, RFID
®,CSR®,Windows®, Windows IoT, Android, Google, Microsoft, Raspberry Pi, Domoticz,, Linux, Ubuntu, Wine, ESP32, Espressif, NodeMCU,LoRa® are used for informational purposes only.
All trademarks are property of their respective owners.

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